There are
2,202 mi
from San Marcos, CA to Sharonville, OH
That's the driving distance. It would take 1 day 14 hours to go from San Marcos, California to Sharonville, Ohio.
The flight distance (direct flight from San Marcos, CA to Sharonville, OH) is 1,863.56 mi.
2,202 mi = 3.22 kms